. >>> president obama has also announced a new initiative in the battle against aids. the announcement made at a white house event yesterday marking world aids day. the president is redirecting $100 million into a project to find aids therapies. >>> topping the health headlines, researchers now link migraines to chemicals found in common household products. that chemical, bpa, is found in plastic ware and food packaging. it may cause a hormonal response and cause debilitating headaches. tests on rats show high levels increase sensitivity to light, sound and other migraine symptoms. researchers are calling for human studies. >>> also making health headlines this morning, dispelling the myth that you can be fat and still fit. studies show that living an active lifestyle mitigated any potential health risks of being overweight. canadian researchers now say it is not true. eight studies of more than 60,000 people concluded that regardless of fitness level, everyone who is overweight has an elevated risk of heart disease and early death. >>> an unsolved mystery has been unraveling in australia.